1975564395660 has 24 divisors (see below), whose sum is σ = 5531580308016. Its totient is φ = 526817172160.

The previous prime is 1975564395583. The next prime is 1975564395667. The reversal of 1975564395660 is 665934655791.

It is a super-2 number, since 2×1975564395660² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1975564395591 and 1975564395600.

It is not an unprimeable number, because it can be changed into a prime (1975564395667) 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, 16463036571 + ... + 16463036690.

It is an arithmetic number, because the mean of its divisors is an integer number (230482512834).

Almost surely, 2^{1975564395660} is an apocalyptic number.

1975564395660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1975564395660 is an abundant number, since it is smaller than the sum of its proper divisors (3556015912356).

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

1975564395660 is a wasteful number, since it uses less digits than its factorization.

1975564395660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32926073273 (or 32926073271 counting only the distinct ones).

The product of its (nonzero) digits is 183708000, while the sum is 66.

The spelling of 1975564395660 in words is "one trillion, nine hundred seventy-five billion, five hundred sixty-four million, three hundred ninety-five thousand, six hundred sixty".