88642161031 has 4 divisors (see below), whose sum is σ = 90144570600. Its totient is φ = 87139751464.

The previous prime is 88642160941. The next prime is 88642161053. The reversal of 88642161031 is 13016124688.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 88642161031 - 2¹³ = 88642152839 is a prime.

It is a super-2 number, since 2×88642161031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88642161131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751204696 + ... + 751204813.

It is an arithmetic number, because the mean of its divisors is an integer number (22536142650).

Almost surely, 2^88642161031 is an apocalyptic number.

88642161031 is a deficient number, since it is larger than the sum of its proper divisors (1502409569).

88642161031 is a wasteful number, since it uses less digits than its factorization.

88642161031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502409568.

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 88642161031 in words is "eighty-eight billion, six hundred forty-two million, one hundred sixty-one thousand, thirty-one".