125454072666 has 32 divisors (see below), whose sum is σ = 270869497920. Its totient is φ = 38506863744.

The previous prime is 125454072659. The next prime is 125454072673. The reversal of 125454072666 is 666270454521.

It is an interprime number because it is at equal distance from previous prime (125454072659) and next prime (125454072673).

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, 1934340 + ... + 1998143.

It is an arithmetic number, because the mean of its divisors is an integer number (8464671810).

Almost surely, 2^125454072666 is an apocalyptic number.

125454072666 is an abundant number, since it is smaller than the sum of its proper divisors (145415425254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125454072666 is a wasteful number, since it uses less digits than its factorization.

125454072666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3932910.

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 125454072666 in words is "one hundred twenty-five billion, four hundred fifty-four million, seventy-two thousand, six hundred sixty-six".