212756016616 has 64 divisors (see below), whose sum is σ = 489034869120. Its totient is φ = 85387019520.

The previous prime is 212756016601. The next prime is 212756016631. The reversal of 212756016616 is 616610657212.

It is an interprime number because it is at equal distance from previous prime (212756016601) and next prime (212756016631).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4016635 + ... + 4069258.

It is an arithmetic number, because the mean of its divisors is an integer number (7641169830).

Almost surely, 2^212756016616 is an apocalyptic number.

212756016616 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

212756016616 is an abundant number, since it is smaller than the sum of its proper divisors (276278852504).

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

212756016616 is a wasteful number, since it uses less digits than its factorization.

212756016616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8085946 (or 8085942 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 212756016616 in words is "two hundred twelve billion, seven hundred fifty-six million, sixteen thousand, six hundred sixteen".