128250371702156 has 72 divisors (see below), whose sum is σ = 247215964417968. Its totient is φ = 57735659520000.

The previous prime is 128250371702143. The next prime is 128250371702203. The reversal of 128250371702156 is 651207173052821.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 742098956 + ... + 742271756.

Almost surely, 2^{128250371702156} is an apocalyptic number.

It is an amenable number.

128250371702156 is a deficient number, since it is larger than the sum of its proper divisors (118965592715812).

128250371702156 is a wasteful number, since it uses less digits than its factorization.

128250371702156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174363 (or 174248 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 50.

The spelling of 128250371702156 in words is "one hundred twenty-eight trillion, two hundred fifty billion, three hundred seventy-one million, seven hundred two thousand, one hundred fifty-six".