161136063634 has 16 divisors (see below), whose sum is σ = 297481963968. Its totient is φ = 63746134992.

The previous prime is 161136063629. The next prime is 161136063659. The reversal of 161136063634 is 436360631161.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442681312 + ... + 442681675.

It is an arithmetic number, because the mean of its divisors is an integer number (18592622748).

Almost surely, 2^161136063634 is an apocalyptic number.

161136063634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161136063634 is a deficient number, since it is larger than the sum of its proper divisors (136345900334).

161136063634 is a wasteful number, since it uses less digits than its factorization.

161136063634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885363009.

The product of its (nonzero) digits is 139968, while the sum is 40.

Adding to 161136063634 its reverse (436360631161), we get a palindrome (597496694795).

The spelling of 161136063634 in words is "one hundred sixty-one billion, one hundred thirty-six million, sixty-three thousand, six hundred thirty-four".