101051615656 has 8 divisors (see below), whose sum is σ = 189471779370. Its totient is φ = 50525807824.

The previous prime is 101051615629. The next prime is 101051615669. The reversal of 101051615656 is 656516150101.

It can be written as a sum of positive squares in only one way, i.e., 100926936100 + 124679556 = 317690^2 + 11166^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×101051615656² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315725971 + ... + 6315725986.

Almost surely, 2^101051615656 is an apocalyptic number.

It is an amenable number.

101051615656 is a deficient number, since it is larger than the sum of its proper divisors (88420163714).

101051615656 is a wasteful number, since it uses less digits than its factorization.

101051615656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12631451963 (or 12631451959 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 37.

Adding to 101051615656 its reverse (656516150101), we get a palindrome (757567765757).

The spelling of 101051615656 in words is "one hundred one billion, fifty-one million, six hundred fifteen thousand, six hundred fifty-six".