121550463214653 has 16 divisors (see below), whose sum is σ = 176870527967232. Its totient is φ = 73637841486000.

The previous prime is 121550463214567. The next prime is 121550463214669. The reversal of 121550463214653 is 356412364055121.

It is a happy number.

It is not a de Polignac number, because 121550463214653 - 2¹⁰ = 121550463213629 is a prime.

It is a super-2 number, since 2×121550463214653² (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 (121550463214693) 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, 727563133 + ... + 727730178.

It is an arithmetic number, because the mean of its divisors is an integer number (11054407997952).

Almost surely, 2^{121550463214653} is an apocalyptic number.

It is an amenable number.

121550463214653 is a deficient number, since it is larger than the sum of its proper divisors (55320064752579).

121550463214653 is a wasteful number, since it uses less digits than its factorization.

121550463214653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455295856.

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 121550463214653 in words is "one hundred twenty-one trillion, five hundred fifty billion, four hundred sixty-three million, two hundred fourteen thousand, six hundred fifty-three".