120616537999 has 4 divisors (see below), whose sum is σ = 120618452080. Its totient is φ = 120614623920.

The previous prime is 120616537957. The next prime is 120616538033. The reversal of 120616537999 is 999735616021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120616537999 - 2²¹ = 120614440847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120616537919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859182 + ... + 989659.

It is an arithmetic number, because the mean of its divisors is an integer number (30154613020).

Almost surely, 2^120616537999 is an apocalyptic number.

120616537999 is a deficient number, since it is larger than the sum of its proper divisors (1914081).

120616537999 is an equidigital number, since it uses as much as digits as its factorization.

120616537999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914080.

The product of its (nonzero) digits is 5511240, while the sum is 58.

The spelling of 120616537999 in words is "one hundred twenty billion, six hundred sixteen million, five hundred thirty-seven thousand, nine hundred ninety-nine".