80165523142 has 16 divisors (see below), whose sum is σ = 123195682512. Its totient is φ = 39100526080.

The previous prime is 80165523131. The next prime is 80165523143. The reversal of 80165523142 is 24132556108.

It is a super-2 number, since 2×80165523142² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80165523143) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 703638 + ... + 809590.

It is an arithmetic number, because the mean of its divisors is an integer number (7699730157).

Almost surely, 2^80165523142 is an apocalyptic number.

80165523142 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

80165523142 is a deficient number, since it is larger than the sum of its proper divisors (43030159370).

80165523142 is a wasteful number, since it uses less digits than its factorization.

80165523142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115223.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 80165523142 in words is "eighty billion, one hundred sixty-five million, five hundred twenty-three thousand, one hundred forty-two".