77233116215620 has 48 divisors (see below), whose sum is σ = 162249156937728. Its totient is φ = 30881893795200.

The previous prime is 77233116215597. The next prime is 77233116215627. The reversal of 77233116215620 is 2651261133277.

It is not an unprimeable number, because it can be changed into a prime (77233116215627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629380270 + ... + 629502970.

It is an arithmetic number, because the mean of its divisors is an integer number (3380190769536).

Almost surely, 2^{77233116215620} is an apocalyptic number.

It is an amenable number.

77233116215620 is an abundant number, since it is smaller than the sum of its proper divisors (85016040722108).

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

77233116215620 is a wasteful number, since it uses less digits than its factorization.

77233116215620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134020 (or 134018 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 46.

Adding to 77233116215620 its reverse (2651261133277), we get a palindrome (79884377348897).

The spelling of 77233116215620 in words is "seventy-seven trillion, two hundred thirty-three billion, one hundred sixteen million, two hundred fifteen thousand, six hundred twenty".