121116644262445 has 64 divisors (see below), whose sum is σ = 164892381696000. Its totient is φ = 84779895582720.

The previous prime is 121116644262437. The next prime is 121116644262457. The reversal of 121116644262445 is 544262446611121.

It is not a de Polignac number, because 121116644262445 - 2³ = 121116644262437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63023541 + ... + 64916869.

It is an arithmetic number, because the mean of its divisors is an integer number (2576443464000).

Almost surely, 2^{121116644262445} is an apocalyptic number.

It is an amenable number.

121116644262445 is a deficient number, since it is larger than the sum of its proper divisors (43775737433555).

121116644262445 is a wasteful number, since it uses less digits than its factorization.

121116644262445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894030.

The product of its digits is 2211840, while the sum is 49.

The spelling of 121116644262445 in words is "one hundred twenty-one trillion, one hundred sixteen billion, six hundred forty-four million, two hundred sixty-two thousand, four hundred forty-five".