616170090 has 16 divisors (see below), whose sum is σ = 1478808288. Its totient is φ = 164312016.

The previous prime is 616170077. The next prime is 616170101. The reversal of 616170090 is 90071616.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 20539003 = 616170090 / (6 + 1 + 6 + 1 + 7 + 0 + 0 + 9 + 0).

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, 10269472 + ... + 10269531.

It is an arithmetic number, because the mean of its divisors is an integer number (92425518).

Almost surely, 2^616170090 is an apocalyptic number.

616170090 is an abundant number, since it is smaller than the sum of its proper divisors (862638198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616170090 is a wasteful number, since it uses less digits than its factorization.

616170090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20539013.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 616170090 is about 24822.7736161775. The cubic root of 616170090 is about 850.9424793914.

The spelling of 616170090 in words is "six hundred sixteen million, one hundred seventy thousand, ninety".