1015645071252 has 48 divisors (see below), whose sum is σ = 2708441211392. Its totient is φ = 290178482400.

The previous prime is 1015645071239. The next prime is 1015645071263. The reversal of 1015645071252 is 2521705465101.

It is a self number, because there is not a number n which added to its sum of digits gives 1015645071252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5797983 + ... + 5970585.

Almost surely, 2^{1015645071252} is an apocalyptic number.

1015645071252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1015645071252 is an abundant number, since it is smaller than the sum of its proper divisors (1692796140140).

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

1015645071252 is a wasteful number, since it uses less digits than its factorization.

1015645071252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242668 (or 242666 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 39.

The spelling of 1015645071252 in words is "one trillion, fifteen billion, six hundred forty-five million, seventy-one thousand, two hundred fifty-two".