365516161620 has 48 divisors (see below), whose sum is σ = 1040791792320. Its totient is φ = 95818925056.

The previous prime is 365516161607. The next prime is 365516161627. The reversal of 365516161620 is 26161615563.

It is a super-2 number, since 2×365516161620² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (365516161627) 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, 51623037 + ... + 51630116.

It is an arithmetic number, because the mean of its divisors is an integer number (21683162340).

Almost surely, 2^365516161620 is an apocalyptic number.

365516161620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

365516161620 is an abundant number, since it is smaller than the sum of its proper divisors (675275630700).

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

365516161620 is a wasteful number, since it uses less digits than its factorization.

365516161620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103253224 (or 103253222 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 365516161620 in words is "three hundred sixty-five billion, five hundred sixteen million, one hundred sixty-one thousand, six hundred twenty".