121614764551 has 16 divisors (see below), whose sum is σ = 143525029888. Its totient is φ = 100841176800.

The previous prime is 121614764527. The next prime is 121614764561. The reversal of 121614764551 is 155467416121.

It is not a de Polignac number, because 121614764551 - 2⁵ = 121614764519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121614764498 and 121614764507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121614764561) 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, 490021 + ... + 695233.

It is an arithmetic number, because the mean of its divisors is an integer number (8970314368).

Almost surely, 2^121614764551 is an apocalyptic number.

121614764551 is a deficient number, since it is larger than the sum of its proper divisors (21910265337).

121614764551 is a wasteful number, since it uses less digits than its factorization.

121614764551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207982.

The product of its digits is 201600, while the sum is 43.

The spelling of 121614764551 in words is "one hundred twenty-one billion, six hundred fourteen million, seven hundred sixty-four thousand, five hundred fifty-one".