1620717165002 has 16 divisors (see below), whose sum is σ = 2632707735840. Its totient is φ = 743844403632.

The previous prime is 1620717164959. The next prime is 1620717165019. The reversal of 1620717165002 is 2005617170261.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174116228 + ... + 174125535.

It is an arithmetic number, because the mean of its divisors is an integer number (164544233490).

Almost surely, 2^{1620717165002} is an apocalyptic number.

1620717165002 is a deficient number, since it is larger than the sum of its proper divisors (1011990570838).

1620717165002 is a wasteful number, since it uses less digits than its factorization.

1620717165002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348241957.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 1620717165002 in words is "one trillion, six hundred twenty billion, seven hundred seventeen million, one hundred sixty-five thousand, two".