121545640014 has 32 divisors (see below), whose sum is σ = 251625553920. Its totient is φ = 39094521312.

The previous prime is 121545640001. The next prime is 121545640019. The reversal of 121545640014 is 410046545121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121545640019) 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, 79339 + ... + 499385.

It is an arithmetic number, because the mean of its divisors is an integer number (7863298560).

Almost surely, 2^121545640014 is an apocalyptic number.

121545640014 is an abundant number, since it is smaller than the sum of its proper divisors (130079913906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121545640014 is a wasteful number, since it uses less digits than its factorization.

121545640014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421744.

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 121545640014 in words is "one hundred twenty-one billion, five hundred forty-five million, six hundred forty thousand, fourteen".