1015552541536 has 96 divisors (see below), whose sum is σ = 2178492146208. Its totient is φ = 463224545280.

The previous prime is 1015552541513. The next prime is 1015552541537. The reversal of 1015552541536 is 6351452555101.

It is a happy number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1015552541492 and 1015552541501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015552541537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18712456 + ... + 18766648.

It is an arithmetic number, because the mean of its divisors is an integer number (22692626523).

Almost surely, 2^{1015552541536} is an apocalyptic number.

1015552541536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1015552541536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1089246073104).

1015552541536 is an abundant number, since it is smaller than the sum of its proper divisors (1162939604672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1015552541536 is a wasteful number, since it uses less digits than its factorization.

1015552541536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54744 (or 54736 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 43.

The spelling of 1015552541536 in words is "one trillion, fifteen billion, five hundred fifty-two million, five hundred forty-one thousand, five hundred thirty-six".