13616761620 has 144 divisors (see below), whose sum is σ = 47895168384. Its totient is φ = 2829446400.

The previous prime is 13616761591. The next prime is 13616761637. The reversal of 13616761620 is 2616761631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 83151 + ... + 184790.

It is an arithmetic number, because the mean of its divisors is an integer number (332605336).

Almost surely, 2^13616761620 is an apocalyptic number.

13616761620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13616761620 is an abundant number, since it is smaller than the sum of its proper divisors (34278406764).

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

13616761620 is a wasteful number, since it uses less digits than its factorization.

13616761620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267982 (or 267969 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 13616761620 in words is "thirteen billion, six hundred sixteen million, seven hundred sixty-one thousand, six hundred twenty".