671506157001 has 16 divisors (see below), whose sum is σ = 901561702400. Its totient is φ = 444569297040.

The previous prime is 671506156999. The next prime is 671506157071. The reversal of 671506157001 is 100751605176.

671506157001 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 671506157001 - 2¹ = 671506156999 is a prime.

It is a super-2 number, since 2×671506157001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (671506157071) 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, 763105 + ... + 1387566.

It is an arithmetic number, because the mean of its divisors is an integer number (56347606400).

Almost surely, 2^671506157001 is an apocalyptic number.

It is an amenable number.

671506157001 is a deficient number, since it is larger than the sum of its proper divisors (230055545399).

671506157001 is a wasteful number, since it uses less digits than its factorization.

671506157001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151396.

The product of its (nonzero) digits is 44100, while the sum is 39.

The spelling of 671506157001 in words is "six hundred seventy-one billion, five hundred six million, one hundred fifty-seven thousand, one".