1525916149836 has 144 divisors (see below), whose sum is σ = 3937027941504. Its totient is φ = 459660883968.

The previous prime is 1525916149787. The next prime is 1525916149843. The reversal of 1525916149836 is 6389416195251.

It is a self number, because there is not a number n which added to its sum of digits gives 1525916149836.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22113340 + ... + 22182236.

It is an arithmetic number, because the mean of its divisors is an integer number (27340471816).

Almost surely, 2^{1525916149836} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1525916149836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1968513970752).

1525916149836 is an abundant number, since it is smaller than the sum of its proper divisors (2411111791668).

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

1525916149836 is a wasteful number, since it uses less digits than its factorization.

1525916149836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69160 (or 69145 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 60.

The spelling of 1525916149836 in words is "one trillion, five hundred twenty-five billion, nine hundred sixteen million, one hundred forty-nine thousand, eight hundred thirty-six".