2165020540402 has 8 divisors (see below), whose sum is σ = 3247848510336. Its totient is φ = 1082404370292.

The previous prime is 2165020540369. The next prime is 2165020540439. The reversal of 2165020540402 is 2040450205612.

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

It is a super-2 number, since 2×2165020540402² (a number of 25 digits) contains 22 as substring.

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, 52924398 + ... + 52965289.

It is an arithmetic number, because the mean of its divisors is an integer number (405981063792).

Almost surely, 2^{2165020540402} is an apocalyptic number.

2165020540402 is a deficient number, since it is larger than the sum of its proper divisors (1082827969934).

2165020540402 is a wasteful number, since it uses less digits than its factorization.

2165020540402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105899912.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 2165020540402 in words is "two trillion, one hundred sixty-five billion, twenty million, five hundred forty thousand, four hundred two".