641461520506260 has 48 divisors (see below), whose sum is σ = 1834306986306816. Its totient is φ = 167416907478912.

The previous prime is 641461520506249. The next prime is 641461520506273. The reversal of 641461520506260 is 62605025164146.

It is a happy number.

It is a super-2 number, since 2×641461520506260² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113734309327 + ... + 113734314966.

It is an arithmetic number, because the mean of its divisors is an integer number (38214728881392).

Almost surely, 2^{641461520506260} is an apocalyptic number.

641461520506260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

641461520506260 is an abundant number, since it is smaller than the sum of its proper divisors (1192845465800556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641461520506260 is a wasteful number, since it uses less digits than its factorization.

641461520506260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227468624352 (or 227468624350 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 641461520506260 in words is "six hundred forty-one trillion, four hundred sixty-one billion, five hundred twenty million, five hundred six thousand, two hundred sixty".