1656472656003 has 32 divisors (see below), whose sum is σ = 2514280158720. Its totient is φ = 960232669440.

The previous prime is 1656472655993. The next prime is 1656472656029. The reversal of 1656472656003 is 3006562746561.

It is a de Polignac number, because none of the positive numbers 2^k-1656472656003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1656472656053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31919625 + ... + 31971477.

It is an arithmetic number, because the mean of its divisors is an integer number (78571254960).

Almost surely, 2^{1656472656003} is an apocalyptic number.

1656472656003 is a deficient number, since it is larger than the sum of its proper divisors (857807502717).

1656472656003 is a wasteful number, since it uses less digits than its factorization.

1656472656003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93979.

The product of its (nonzero) digits is 5443200, while the sum is 51.

The spelling of 1656472656003 in words is "one trillion, six hundred fifty-six billion, four hundred seventy-two million, six hundred fifty-six thousand, three".