125045621654 has 16 divisors (see below), whose sum is σ = 191221675008. Its totient is φ = 61313433192.

The previous prime is 125045621621. The next prime is 125045621677. The reversal of 125045621654 is 456126540521.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2062442 + ... + 2122205.

It is an arithmetic number, because the mean of its divisors is an integer number (11951354688).

Almost surely, 2^125045621654 is an apocalyptic number.

125045621654 is a deficient number, since it is larger than the sum of its proper divisors (66176053354).

125045621654 is a wasteful number, since it uses less digits than its factorization.

125045621654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4184939.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 125045621654 in words is "one hundred twenty-five billion, forty-five million, six hundred twenty-one thousand, six hundred fifty-four".