1012155635204 has 48 divisors (see below), whose sum is σ = 2123995351296. Its totient is φ = 412628515200.

The previous prime is 1012155635189. The next prime is 1012155635213. The reversal of 1012155635204 is 4025365512101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4225067 + ... + 4458194.

It is an arithmetic number, because the mean of its divisors is an integer number (44249903152).

Almost surely, 2^{1012155635204} is an apocalyptic number.

1012155635204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1012155635204 is an abundant number, since it is smaller than the sum of its proper divisors (1111839716092).

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

1012155635204 is a wasteful number, since it uses less digits than its factorization.

1012155635204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8683476 (or 8683474 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 1012155635204 in words is "one trillion, twelve billion, one hundred fifty-five million, six hundred thirty-five thousand, two hundred four".