403064513661 has 8 divisors (see below), whose sum is σ = 538837346080. Its totient is φ = 268000678512.

The previous prime is 403064513653. The next prime is 403064513669. The reversal of 403064513661 is 166315460304.

It is an interprime number because it is at equal distance from previous prime (403064513653) and next prime (403064513669).

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

It is not a de Polignac number, because 403064513661 - 2³ = 403064513653 is a prime.

It is a super-2 number, since 2×403064513661² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403064513669) 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, 177247990 + ... + 177250263.

It is an arithmetic number, because the mean of its divisors is an integer number (67354668260).

Almost surely, 2^403064513661 is an apocalyptic number.

It is an amenable number.

403064513661 is a deficient number, since it is larger than the sum of its proper divisors (135772832419).

403064513661 is a wasteful number, since it uses less digits than its factorization.

403064513661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354498635.

The product of its (nonzero) digits is 155520, while the sum is 39.

Adding to 403064513661 its reverse (166315460304), we get a palindrome (569379973965).

The spelling of 403064513661 in words is "four hundred three billion, sixty-four million, five hundred thirteen thousand, six hundred sixty-one".