120215615651 has 8 divisors (see below), whose sum is σ = 127290683520. Its totient is φ = 113140943488.

The previous prime is 120215615633. The next prime is 120215615659. The reversal of 120215615651 is 156516512021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120215615651 - 2¹⁸ = 120215353507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120215615659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720590 + ... + 871596.

It is an arithmetic number, because the mean of its divisors is an integer number (15911335440).

Almost surely, 2^120215615651 is an apocalyptic number.

120215615651 is a deficient number, since it is larger than the sum of its proper divisors (7075067869).

120215615651 is a wasteful number, since it uses less digits than its factorization.

120215615651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197853.

The product of its (nonzero) digits is 18000, while the sum is 35.

The spelling of 120215615651 in words is "one hundred twenty billion, two hundred fifteen million, six hundred fifteen thousand, six hundred fifty-one".