657161002 has 16 divisors (see below), whose sum is σ = 1041207552. Its totient is φ = 310584960.

The previous prime is 657160981. The next prime is 657161009. The reversal of 657161002 is 200161756.

It is not an unprimeable number, because it can be changed into a prime (657161009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120583 + ... + 125914.

It is an arithmetic number, because the mean of its divisors is an integer number (65075472).

Almost surely, 2^657161002 is an apocalyptic number.

657161002 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

657161002 is a deficient number, since it is larger than the sum of its proper divisors (384046550).

657161002 is a wasteful number, since it uses less digits than its factorization.

657161002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246573.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 657161002 is about 25635.1516866977. The cubic root of 657161002 is about 869.4085917662.

The spelling of 657161002 in words is "six hundred fifty-seven million, one hundred sixty-one thousand, two".