101660220964 has 9 divisors (see below), whose sum is σ = 177906502641. Its totient is φ = 50829791640.

The previous prime is 101660220919. The next prime is 101660220971. The reversal of 101660220964 is 469022066101.

The square root of 101660220964 is 318842.

It is a perfect power (a square), and thus also a powerful number.

101660220964 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 82049019364 + 19611201600 = 286442^2 + 140040^2 .

It is a super-3 number, since 3×101660220964³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 557974 + ... + 717394.

Almost surely, 2^101660220964 is an apocalyptic number.

101660220964 is the 318842-nd square number.

It is an amenable number.

101660220964 is a deficient number, since it is larger than the sum of its proper divisors (76246281677).

101660220964 is an frugal number, since it uses more digits than its factorization.

101660220964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318846 (or 159423 counting only the distinct ones).

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

It can be divided in two parts, 101660 and 220964, that added together give a square (322624 = 568²).

The spelling of 101660220964 in words is "one hundred one billion, six hundred sixty million, two hundred twenty thousand, nine hundred sixty-four".