13334778903556 has 48 divisors (see below), whose sum is σ = 26102826731520. Its totient is φ = 5908146441120.

The previous prime is 13334778903547. The next prime is 13334778903557. The reversal of 13334778903556 is 65530987743331.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13334778903557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6314716 + ... + 8157523.

It is an arithmetic number, because the mean of its divisors is an integer number (543808890240).

Almost surely, 2^{13334778903556} is an apocalyptic number.

It is an amenable number.

13334778903556 is a deficient number, since it is larger than the sum of its proper divisors (12768047827964).

13334778903556 is a wasteful number, since it uses less digits than its factorization.

13334778903556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14472784 (or 14472782 counting only the distinct ones).

The product of its (nonzero) digits is 171460800, while the sum is 64.

The spelling of 13334778903556 in words is "thirteen trillion, three hundred thirty-four billion, seven hundred seventy-eight million, nine hundred three thousand, five hundred fifty-six".