356231661 has 8 divisors (see below), whose sum is σ = 476035200. Its totient is φ = 236957952.

The previous prime is 356231641. The next prime is 356231663. The reversal of 356231661 is 166132653.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 356231661 - 2⁹ = 356231149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (356231663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130885 + ... + 133578.

It is an arithmetic number, because the mean of its divisors is an integer number (59504400).

Almost surely, 2^356231661 is an apocalyptic number.

It is an amenable number.

356231661 is a deficient number, since it is larger than the sum of its proper divisors (119803539).

356231661 is a wasteful number, since it uses less digits than its factorization.

356231661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264915.

The product of its digits is 19440, while the sum is 33.

The square root of 356231661 is about 18874.1002699466. The cubic root of 356231661 is about 708.8878050741.

The spelling of 356231661 in words is "three hundred fifty-six million, two hundred thirty-one thousand, six hundred sixty-one".