120211640424657 has 32 divisors (see below), whose sum is σ = 188161440912000. Its totient is φ = 75640899072960.

The previous prime is 120211640424641. The next prime is 120211640424683. The reversal of 120211640424657 is 756424046112021.

120211640424657 is a `hidden beast` number, since 1 + 2 + 0 + 2 + 1 + 164 + 0 + 424 + 65 + 7 = 666.

It is not a de Polignac number, because 120211640424657 - 2⁴ = 120211640424641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120211640474657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435420894 + ... + 435696887.

It is an arithmetic number, because the mean of its divisors is an integer number (5880045028500).

Almost surely, 2^{120211640424657} is an apocalyptic number.

It is an amenable number.

120211640424657 is a deficient number, since it is larger than the sum of its proper divisors (67949800487343).

120211640424657 is a wasteful number, since it uses less digits than its factorization.

120211640424657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871118078 (or 871118072 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

Adding to 120211640424657 its reverse (756424046112021), we get a palindrome (876635686536678).

The spelling of 120211640424657 in words is "one hundred twenty trillion, two hundred eleven billion, six hundred forty million, four hundred twenty-four thousand, six hundred fifty-seven".