672157366 has 4 divisors (see below), whose sum is σ = 1008236052. Its totient is φ = 336078682.

The previous prime is 672157363. The next prime is 672157399. The reversal of 672157366 is 663751276.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672157361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168039340 + ... + 168039343.

It is an arithmetic number, because the mean of its divisors is an integer number (252059013).

Almost surely, 2^672157366 is an apocalyptic number.

672157366 is a deficient number, since it is larger than the sum of its proper divisors (336078686).

672157366 is a wasteful number, since it uses less digits than its factorization.

672157366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336078685.

The product of its digits is 317520, while the sum is 43.

The square root of 672157366 is about 25925.9978785774. The cubic root of 672157366 is about 875.9721944080.

The spelling of 672157366 in words is "six hundred seventy-two million, one hundred fifty-seven thousand, three hundred sixty-six".