78332250156 has 12 divisors (see below), whose sum is σ = 182775250392. Its totient is φ = 26110750048.

The previous prime is 78332250151. The next prime is 78332250169. The reversal of 78332250156 is 65105223387.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×78332250156² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78332250151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3263843745 + ... + 3263843768.

It is an arithmetic number, because the mean of its divisors is an integer number (15231270866).

Almost surely, 2^78332250156 is an apocalyptic number.

It is an amenable number.

78332250156 is an abundant number, since it is smaller than the sum of its proper divisors (104443000236).

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

78332250156 is a wasteful number, since it uses less digits than its factorization.

78332250156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6527687520 (or 6527687518 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 78332250156 in words is "seventy-eight billion, three hundred thirty-two million, two hundred fifty thousand, one hundred fifty-six".