161026562100 has 36 divisors (see below), whose sum is σ = 465903520544. Its totient is φ = 42940416480.

The previous prime is 161026562077. The next prime is 161026562101. The reversal of 161026562100 is 1265620161.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161026562101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268377304 + ... + 268377903.

Almost surely, 2^161026562100 is an apocalyptic number.

161026562100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161026562100 is an abundant number, since it is smaller than the sum of its proper divisors (304876958444).

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

161026562100 is a wasteful number, since it uses less digits than its factorization.

161026562100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536755224 (or 536755217 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 161026562100 in words is "one hundred sixty-one billion, twenty-six million, five hundred sixty-two thousand, one hundred".