161061988350 has 24 divisors (see below), whose sum is σ = 399433731480. Its totient is φ = 42949863520.

The previous prime is 161061988327. The next prime is 161061988393. The reversal of 161061988350 is 53889160161.

161061988350 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 161061988350.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 536873145 + ... + 536873444.

It is an arithmetic number, because the mean of its divisors is an integer number (16643072145).

Almost surely, 2^161061988350 is an apocalyptic number.

161061988350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161061988350 is an abundant number, since it is smaller than the sum of its proper divisors (238371743130).

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

161061988350 is a wasteful number, since it uses less digits than its factorization.

161061988350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073746604 (or 1073746599 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

It can be divided in two parts, 161061 and 988350, that added together give a palindrome (1149411).

The spelling of 161061988350 in words is "one hundred sixty-one billion, sixty-one million, nine hundred eighty-eight thousand, three hundred fifty".