655440464546 has 32 divisors (see below), whose sum is σ = 1173466856448. Its totient is φ = 268460272080.

The previous prime is 655440464537. The next prime is 655440464563. The reversal of 655440464546 is 645464044556.

It is a happy number.

It is a super-2 number, since 2×655440464546² (a number of 24 digits) contains 22 as substring.

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, 492080 + ... + 1246203.

It is an arithmetic number, because the mean of its divisors is an integer number (36670839264).

Almost surely, 2^655440464546 is an apocalyptic number.

655440464546 is a deficient number, since it is larger than the sum of its proper divisors (518026391902).

655440464546 is a wasteful number, since it uses less digits than its factorization.

655440464546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739486.

The product of its (nonzero) digits is 27648000, while the sum is 53.

The spelling of 655440464546 in words is "six hundred fifty-five billion, four hundred forty million, four hundred sixty-four thousand, five hundred forty-six".