167537081649 has 16 divisors (see below), whose sum is σ = 255305753600. Its totient is φ = 95731292880.

The previous prime is 167537081639. The next prime is 167537081693. The reversal of 167537081649 is 946180735761.

It is a happy number.

It is not a de Polignac number, because 167537081649 - 2¹¹ = 167537079601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167537081609) 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, 355302 + ... + 679200.

It is an arithmetic number, because the mean of its divisors is an integer number (15956609600).

Almost surely, 2^167537081649 is an apocalyptic number.

It is an amenable number.

167537081649 is a deficient number, since it is larger than the sum of its proper divisors (87768671951).

167537081649 is a wasteful number, since it uses less digits than its factorization.

167537081649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348540.

The product of its (nonzero) digits is 7620480, while the sum is 57.

The spelling of 167537081649 in words is "one hundred sixty-seven billion, five hundred thirty-seven million, eighty-one thousand, six hundred forty-nine".