476156398561 has 8 divisors (see below), whose sum is σ = 489158625960. Its totient is φ = 463161178368.

The previous prime is 476156398559. The next prime is 476156398567. The reversal of 476156398561 is 165893651674.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 310116448161 + 166039950400 = 556881^2 + 407480^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 476156398561 - 2¹ = 476156398559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 476156398561.

It is not an unprimeable number, because it can be changed into a prime (476156398567) 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, 1613896 + ... + 1885993.

It is an arithmetic number, because the mean of its divisors is an integer number (61144828245).

Almost surely, 2^476156398561 is an apocalyptic number.

It is an amenable number.

476156398561 is a deficient number, since it is larger than the sum of its proper divisors (13002227399).

476156398561 is a wasteful number, since it uses less digits than its factorization.

476156398561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503603.

The product of its digits is 32659200, while the sum is 61.

The spelling of 476156398561 in words is "four hundred seventy-six billion, one hundred fifty-six million, three hundred ninety-eight thousand, five hundred sixty-one".