118981545501 has 96 divisors (see below), whose sum is σ = 203398938624. Its totient is φ = 60239894400.

The previous prime is 118981545499. The next prime is 118981545509. The reversal of 118981545501 is 105545189811.

It is not a de Polignac number, because 118981545501 - 2¹ = 118981545499 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118981545509) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 33317046 + ... + 33320616.

It is an arithmetic number, because the mean of its divisors is an integer number (2118738944).

Almost surely, 2^118981545501 is an apocalyptic number.

It is an amenable number.

118981545501 is a deficient number, since it is larger than the sum of its proper divisors (84417393123).

118981545501 is a wasteful number, since it uses less digits than its factorization.

118981545501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3783 (or 3752 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 48.

The spelling of 118981545501 in words is "one hundred eighteen billion, nine hundred eighty-one million, five hundred forty-five thousand, five hundred one".