120778652400 has 120 divisors (see below), whose sum is σ = 442164925824. Its totient is φ = 27606547200.

The previous prime is 120778652389. The next prime is 120778652413. The reversal of 120778652400 is 4256877021.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 7180806 + ... + 7197605.

Almost surely, 2^120778652400 is an apocalyptic number.

120778652400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120778652400 is an abundant number, since it is smaller than the sum of its proper divisors (321386273424).

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

120778652400 is a wasteful number, since it uses less digits than its factorization.

120778652400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14378439 (or 14378428 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 120778652400 in words is "one hundred twenty billion, seven hundred seventy-eight million, six hundred fifty-two thousand, four hundred".