21670714141600 has 72 divisors (see below), whose sum is σ = 54333458834508. Its totient is φ = 8434007654400.

The previous prime is 21670714141579. The next prime is 21670714141633. The reversal of 21670714141600 is 614141707612.

It can be written as a sum of positive squares in 6 ways, for example, as 12970975122576 + 8699739019024 = 3601524^2 + 2949532^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 366029761 + ... + 366088960.

Almost surely, 2^{21670714141600} is an apocalyptic number.

21670714141600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21670714141600 is an abundant number, since it is smaller than the sum of its proper divisors (32662744692908).

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

21670714141600 is a wasteful number, since it uses less digits than its factorization.

21670714141600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732118778 (or 732118765 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 21670714141600 in words is "twenty-one trillion, six hundred seventy billion, seven hundred fourteen million, one hundred forty-one thousand, six hundred".