1620943614100 has 36 divisors (see below), whose sum is σ = 3603239057628. Its totient is φ = 632563360000.

The previous prime is 1620943614091. The next prime is 1620943614187. The reversal of 1620943614100 is 14163490261.

It can be written as a sum of positive squares in 6 ways, for example, as 29682465796 + 1591261148304 = 172286^2 + 1261452^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1620943614100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197671951 + ... + 197680150.

It is an arithmetic number, because the mean of its divisors is an integer number (100089973823).

Almost surely, 2^{1620943614100} is an apocalyptic number.

1620943614100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1620943614100 is an abundant number, since it is smaller than the sum of its proper divisors (1982295443528).

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

1620943614100 is a wasteful number, since it uses less digits than its factorization.

1620943614100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395352156 (or 395352149 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 1620943614100 in words is "one trillion, six hundred twenty billion, nine hundred forty-three million, six hundred fourteen thousand, one hundred".