121445601495696 has 45 divisors (see below), whose sum is σ = 339879379838089. Its totient is φ = 40481823084288.

The previous prime is 121445601495641. The next prime is 121445601495703. The reversal of 121445601495696 is 696594106544121.

The square root of 121445601495696 is 11020236.

It is a perfect power (a square), and thus also a powerful number.

121445601495696 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 4 + 5 + 60 + 1 + 4 + 9 + 569 + 6 = 666.

121445601495696 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 96564819027600 + 24880782468096 = 9826740^2 + 4988064^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 131783656 + ... + 132702008.

Almost surely, 2^{121445601495696} is an apocalyptic number.

121445601495696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

121445601495696 is the 11020236-th square number.

It is an amenable number.

121445601495696 is an abundant number, since it is smaller than the sum of its proper divisors (218433778342393).

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

121445601495696 is an frugal number, since it uses more digits than its factorization.

121445601495696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836720 (or 918358 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 121445601495696 in words is "one hundred twenty-one trillion, four hundred forty-five billion, six hundred one million, four hundred ninety-five thousand, six hundred ninety-six".