125463623665 has 16 divisors (see below), whose sum is σ = 152492889600. Its totient is φ = 99080384832.

The previous prime is 125463623651. The next prime is 125463623683. The reversal of 125463623665 is 566326364521.

It is a cyclic number.

It is not a de Polignac number, because 125463623665 - 2¹⁷ = 125463492593 is a prime.

It is a super-2 number, since 2×125463623665² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2108796 + ... + 2167474.

It is an arithmetic number, because the mean of its divisors is an integer number (9530805600).

Almost surely, 2^125463623665 is an apocalyptic number.

It is an amenable number.

125463623665 is a deficient number, since it is larger than the sum of its proper divisors (27029265935).

125463623665 is an equidigital number, since it uses as much as digits as its factorization.

125463623665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64176.

The product of its digits is 4665600, while the sum is 49.

The spelling of 125463623665 in words is "one hundred twenty-five billion, four hundred sixty-three million, six hundred twenty-three thousand, six hundred sixty-five".