80172523061 has 8 divisors (see below), whose sum is σ = 81894979200. Its totient is φ = 78450761088.

The previous prime is 80172523027. The next prime is 80172523087. The reversal of 80172523061 is 16032527108.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80172523061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80172523001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63365 + ... + 405413.

It is an arithmetic number, because the mean of its divisors is an integer number (10236872400).

Almost surely, 2^80172523061 is an apocalyptic number.

It is an amenable number.

80172523061 is a deficient number, since it is larger than the sum of its proper divisors (1722456139).

80172523061 is a wasteful number, since it uses less digits than its factorization.

80172523061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347083.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 80172523061 in words is "eighty billion, one hundred seventy-two million, five hundred twenty-three thousand, sixty-one".