333666986397 has 16 divisors (see below), whose sum is σ = 447239836032. Its totient is φ = 221271482880.

The previous prime is 333666986369. The next prime is 333666986453. The reversal of 333666986397 is 793689666333.

It is not a de Polignac number, because 333666986397 - 2⁶ = 333666986333 is a prime.

It is a super-2 number, since 2×333666986397² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (333666986347) 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, 381153 + ... + 901449.

It is an arithmetic number, because the mean of its divisors is an integer number (27952489752).

Almost surely, 2^333666986397 is an apocalyptic number.

It is an amenable number.

333666986397 is a deficient number, since it is larger than the sum of its proper divisors (113572849635).

333666986397 is a wasteful number, since it uses less digits than its factorization.

333666986397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521428.

The product of its digits is 476171136, while the sum is 69.

The spelling of 333666986397 in words is "three hundred thirty-three billion, six hundred sixty-six million, nine hundred eighty-six thousand, three hundred ninety-seven".