1015263253616 has 40 divisors (see below), whose sum is σ = 2118810292224. Its totient is φ = 469897433280.

The previous prime is 1015263253601. The next prime is 1015263253643. The reversal of 1015263253616 is 6163523625101.

1015263253616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44486456 + ... + 44509271.

Almost surely, 2^{1015263253616} is an apocalyptic number.

1015263253616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1015263253616 is an abundant number, since it is smaller than the sum of its proper divisors (1103547038608).

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

1015263253616 is a wasteful number, since it uses less digits than its factorization.

1015263253616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88995789 (or 88995783 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

Adding to 1015263253616 its reverse (6163523625101), we get a palindrome (7178786878717).

The spelling of 1015263253616 in words is "one trillion, fifteen billion, two hundred sixty-three million, two hundred fifty-three thousand, six hundred sixteen".