216157514620 has 24 divisors (see below), whose sum is σ = 454211226000. Its totient is φ = 86409587712.

The previous prime is 216157514611. The next prime is 216157514621. The reversal of 216157514620 is 26415751612.

It is a super-2 number, since 2×216157514620² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216157514621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3305445 + ... + 3370204.

It is an arithmetic number, because the mean of its divisors is an integer number (18925467750).

Almost surely, 2^216157514620 is an apocalyptic number.

216157514620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216157514620 is an abundant number, since it is smaller than the sum of its proper divisors (238053711380).

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

216157514620 is a wasteful number, since it uses less digits than its factorization.

216157514620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6677277 (or 6677275 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 216157514620 in words is "two hundred sixteen billion, one hundred fifty-seven million, five hundred fourteen thousand, six hundred twenty".