101621140510605 has 16 divisors (see below), whose sum is σ = 163198262833920. Its totient is φ = 53996462266688.

The previous prime is 101621140510567. The next prime is 101621140510607. The reversal of 101621140510605 is 506015041126101.

It is a cyclic number.

It is not a de Polignac number, because 101621140510605 - 2¹⁸ = 101621140248461 is a prime.

It is a super-2 number, since 2×101621140510605² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101621140510607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12592454517 + ... + 12592462586.

It is an arithmetic number, because the mean of its divisors is an integer number (10199891427120).

Almost surely, 2^{101621140510605} is an apocalyptic number.

101621140510605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101621140510605 is a deficient number, since it is larger than the sum of its proper divisors (61577122323315).

101621140510605 is a wasteful number, since it uses less digits than its factorization.

101621140510605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25184917380.

The product of its (nonzero) digits is 7200, while the sum is 33.

Adding to 101621140510605 its reverse (506015041126101), we get a palindrome (607636181636706).

The spelling of 101621140510605 in words is "one hundred one trillion, six hundred twenty-one billion, one hundred forty million, five hundred ten thousand, six hundred five".