64623255232646 has 12 divisors (see below), whose sum is σ = 106548259660836. Its totient is φ = 29374206923820.

The previous prime is 64623255232633. The next prime is 64623255232661.

64623255232646 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64623255232646² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64623255232591 and 64623255232600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133519122140 + ... + 133519122623.

It is an arithmetic number, because the mean of its divisors is an integer number (8879021638403).

Almost surely, 2^{64623255232646} is an apocalyptic number.

64623255232646 is a deficient number, since it is larger than the sum of its proper divisors (41925004428190).

64623255232646 is a wasteful number, since it uses less digits than its factorization.

64623255232646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267038244787 (or 267038244776 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 56.

The spelling of 64623255232646 in words is "sixty-four trillion, six hundred twenty-three billion, two hundred fifty-five million, two hundred thirty-two thousand, six hundred forty-six".