664374151 has 4 divisors (see below), whose sum is σ = 759284752. Its totient is φ = 569463552.

The previous prime is 664374143. The next prime is 664374167. The reversal of 664374151 is 151473466.

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

It is not a de Polignac number, because 664374151 - 2³ = 664374143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 664374151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664374101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47455290 + ... + 47455303.

It is an arithmetic number, because the mean of its divisors is an integer number (189821188).

Almost surely, 2^664374151 is an apocalyptic number.

664374151 is a deficient number, since it is larger than the sum of its proper divisors (94910601).

664374151 is an equidigital number, since it uses as much as digits as its factorization.

664374151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94910600.

The product of its digits is 60480, while the sum is 37.

The square root of 664374151 is about 25775.4563684137. The cubic root of 664374151 is about 872.5779662842.

The spelling of 664374151 in words is "six hundred sixty-four million, three hundred seventy-four thousand, one hundred fifty-one".