3556667245257 has 16 divisors (see below), whose sum is σ = 6021870468480. Its totient is φ = 2032381282896.

The previous prime is 3556667245247. The next prime is 3556667245301. The reversal of 3556667245257 is 7525427666553.

It is not a de Polignac number, because 3556667245257 - 2¹⁵ = 3556667212489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 3556667245194 and 3556667245203.

It is not an unprimeable number, because it can be changed into a prime (3556667245237) 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, 9409172418 + ... + 9409172795.

It is an arithmetic number, because the mean of its divisors is an integer number (376366904280).

Almost surely, 2^{3556667245257} is an apocalyptic number.

It is an amenable number.

3556667245257 is a deficient number, since it is larger than the sum of its proper divisors (2465203223223).

3556667245257 is a wasteful number, since it uses less digits than its factorization.

3556667245257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18818345229 (or 18818345223 counting only the distinct ones).

The product of its digits is 317520000, while the sum is 63.

The spelling of 3556667245257 in words is "three trillion, five hundred fifty-six billion, six hundred sixty-seven million, two hundred forty-five thousand, two hundred fifty-seven".