165620050042 has 8 divisors (see below), whose sum is σ = 249678468000. Its totient is φ = 82393894044.

The previous prime is 165620050033. The next prime is 165620050069. The reversal of 165620050042 is 240050026561.

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

It is a junction number, because it is equal to n+sod(n) for n = 165620049986 and 165620050013.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208064992 + ... + 208065787.

It is an arithmetic number, because the mean of its divisors is an integer number (31209808500).

Almost surely, 2^165620050042 is an apocalyptic number.

165620050042 is a deficient number, since it is larger than the sum of its proper divisors (84058417958).

165620050042 is a wasteful number, since it uses less digits than its factorization.

165620050042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416130980.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 165620050042 in words is "one hundred sixty-five billion, six hundred twenty million, fifty thousand, forty-two".