1656353398 has 8 divisors (see below), whose sum is σ = 2839462992. Its totient is φ = 709865736.

The previous prime is 1656353393. The next prime is 1656353453. The reversal of 1656353398 is 8933536561.

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

It is a super-2 number, since 2×1656353398² = 5487013158132292808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656353393) 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, 59155465 + ... + 59155492.

It is an arithmetic number, because the mean of its divisors is an integer number (354932874).

Almost surely, 2^1656353398 is an apocalyptic number.

1656353398 is a deficient number, since it is larger than the sum of its proper divisors (1183109594).

1656353398 is a wasteful number, since it uses less digits than its factorization.

1656353398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118310966.

The product of its digits is 1749600, while the sum is 49.

The square root of 1656353398 is about 40698.3218081532. The cubic root of 1656353398 is about 1183.1804933504.

The spelling of 1656353398 in words is "one billion, six hundred fifty-six million, three hundred fifty-three thousand, three hundred ninety-eight".