161061036654 has 32 divisors (see below), whose sum is σ = 387515278080. Its totient is φ = 43595468352.

The previous prime is 161061036613. The next prime is 161061036671. The reversal of 161061036654 is 456630160161.

It is a super-2 number, since 2×161061036654² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100914639 + ... + 100916234.

It is an arithmetic number, because the mean of its divisors is an integer number (12109852440).

Almost surely, 2^161061036654 is an apocalyptic number.

161061036654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161061036654 is an abundant number, since it is smaller than the sum of its proper divisors (226454241426).

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

161061036654 is a wasteful number, since it uses less digits than its factorization.

161061036654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201830904.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 161061036654 in words is "one hundred sixty-one billion, sixty-one million, thirty-six thousand, six hundred fifty-four".