157404666 has 32 divisors (see below), whose sum is σ = 334041408. Its totient is φ = 49276160.

The previous prime is 157404661. The next prime is 157404677. The reversal of 157404666 is 666404751.

It is a super-3 number, since 3×157404666³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157404661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56056 + ... + 58796.

It is an arithmetic number, because the mean of its divisors is an integer number (10438794).

Almost surely, 2^157404666 is an apocalyptic number.

157404666 is an abundant number, since it is smaller than the sum of its proper divisors (176636742).

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

157404666 is a wasteful number, since it uses less digits than its factorization.

157404666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 157404666 is about 12546.1016256047. The cubic root of 157404666 is about 539.9321656903.

The spelling of 157404666 in words is "one hundred fifty-seven million, four hundred four thousand, six hundred sixty-six".