101440636555 has 16 divisors (see below), whose sum is σ = 123737955264. Its totient is φ = 79813342080.

The previous prime is 101440636513. The next prime is 101440636579. The reversal of 101440636555 is 555636044101.

It is a happy number.

It is not a de Polignac number, because 101440636555 - 2¹³ = 101440628363 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5018449 + ... + 5038621.

It is an arithmetic number, because the mean of its divisors is an integer number (7733622204).

Almost surely, 2^101440636555 is an apocalyptic number.

101440636555 is a deficient number, since it is larger than the sum of its proper divisors (22297318709).

101440636555 is a wasteful number, since it uses less digits than its factorization.

101440636555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36726.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 101440636555 in words is "one hundred one billion, four hundred forty million, six hundred thirty-six thousand, five hundred fifty-five".