641460554806 has 4 divisors (see below), whose sum is σ = 962190832212. Its totient is φ = 320730277402.

The previous prime is 641460554767. The next prime is 641460554807. The reversal of 641460554806 is 608455064146.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 608455064146 = 2 ⋅304227532073.

It is a super-2 number, since 2×641460554806² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641460554806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641460554807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160365138700 + ... + 160365138703.

It is an arithmetic number, because the mean of its divisors is an integer number (240547708053).

Almost surely, 2^641460554806 is an apocalyptic number.

641460554806 is a deficient number, since it is larger than the sum of its proper divisors (320730277406).

641460554806 is a wasteful number, since it uses less digits than its factorization.

641460554806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320730277405.

The product of its (nonzero) digits is 2764800, while the sum is 49.

The spelling of 641460554806 in words is "six hundred forty-one billion, four hundred sixty million, five hundred fifty-four thousand, eight hundred six".