801660413731 has 16 divisors (see below), whose sum is σ = 850343546880. Its totient is φ = 754219871680.

The previous prime is 801660413681. The next prime is 801660413737. The reversal of 801660413731 is 137314066108.

It is a cyclic number.

It is not a de Polignac number, because 801660413731 - 2¹¹ = 801660411683 is a prime.

It is a super-2 number, since 2×801660413731² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (801660413737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 634225 + ... + 1416178.

It is an arithmetic number, because the mean of its divisors is an integer number (53146471680).

Almost surely, 2^801660413731 is an apocalyptic number.

801660413731 is a deficient number, since it is larger than the sum of its proper divisors (48683133149).

801660413731 is a wasteful number, since it uses less digits than its factorization.

801660413731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050706.

The product of its (nonzero) digits is 72576, while the sum is 40.

Adding to 801660413731 its reverse (137314066108), we get a palindrome (938974479839).

The spelling of 801660413731 in words is "eight hundred one billion, six hundred sixty million, four hundred thirteen thousand, seven hundred thirty-one".