10921614177551 has 8 divisors (see below), whose sum is σ = 13616557935744. Its totient is φ = 8510348709720.

The previous prime is 10921614177533. The next prime is 10921614177553. The reversal of 10921614177551 is 15577141612901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10921614177551 - 2¹⁴ = 10921614161167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10921614177551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10921614177553) 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, 70919572505 + ... + 70919572658.

It is an arithmetic number, because the mean of its divisors is an integer number (1702069741968).

Almost surely, 2^{10921614177551} is an apocalyptic number.

10921614177551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10921614177551 is a deficient number, since it is larger than the sum of its proper divisors (2694943758193).

10921614177551 is a wasteful number, since it uses less digits than its factorization.

10921614177551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141839145181.

The product of its (nonzero) digits is 529200, while the sum is 50.

The spelling of 10921614177551 in words is "ten trillion, nine hundred twenty-one billion, six hundred fourteen million, one hundred seventy-seven thousand, five hundred fifty-one".