1521116043536 has 10 divisors (see below), whose sum is σ = 2947162334382. Its totient is φ = 760558021760.

The previous prime is 1521116043529. The next prime is 1521116043547. The reversal of 1521116043536 is 6353406111251.

It can be written as a sum of positive squares in only one way, i.e., 1516483879936 + 4632163600 = 1231456^2 + 68060^2 .

It is a super-2 number, since 2×1521116043536² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1521116043536.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47534876345 + ... + 47534876376.

Almost surely, 2^{1521116043536} is an apocalyptic number.

1521116043536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1521116043536 is a deficient number, since it is larger than the sum of its proper divisors (1426046290846).

1521116043536 is an equidigital number, since it uses as much as digits as its factorization.

1521116043536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95069752729 (or 95069752723 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 1521116043536 in words is "one trillion, five hundred twenty-one billion, one hundred sixteen million, forty-three thousand, five hundred thirty-six".