167961313236666 has 64 divisors (see below), whose sum is σ = 348302973024000. Its totient is φ = 53932582588416.

The previous prime is 167961313236659. The next prime is 167961313236679. The reversal of 167961313236666 is 666632313169761.

It is a super-2 number, since 2×167961313236666² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 167961313236597 and 167961313236606.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1358002420 + ... + 1358126096.

It is an arithmetic number, because the mean of its divisors is an integer number (5442233953500).

Almost surely, 2^{167961313236666} is an apocalyptic number.

167961313236666 is an abundant number, since it is smaller than the sum of its proper divisors (180341659787334).

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

167961313236666 is a wasteful number, since it uses less digits than its factorization.

167961313236666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141543.

The product of its digits is 158723712, while the sum is 66.

The spelling of 167961313236666 in words is "one hundred sixty-seven trillion, nine hundred sixty-one billion, three hundred thirteen million, two hundred thirty-six thousand, six hundred sixty-six".