120666146531 has 24 divisors (see below), whose sum is σ = 146620899360. Its totient is φ = 98829088512.

The previous prime is 120666146527. The next prime is 120666146539. The reversal of 120666146531 is 135641666021.

It is not a de Polignac number, because 120666146531 - 2² = 120666146527 is a prime.

It is a super-2 number, since 2×120666146531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120666146539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1046285 + ... + 1155873.

It is an arithmetic number, because the mean of its divisors is an integer number (6109204140).

Almost surely, 2^120666146531 is an apocalyptic number.

120666146531 is a deficient number, since it is larger than the sum of its proper divisors (25954752829).

120666146531 is a wasteful number, since it uses less digits than its factorization.

120666146531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110603 (or 110596 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 120666146531 in words is "one hundred twenty billion, six hundred sixty-six million, one hundred forty-six thousand, five hundred thirty-one".