641596950 has 60 divisors (see below), whose sum is σ = 1782700260. Its totient is φ = 171091440.

The previous prime is 641596939. The next prime is 641596973. The reversal of 641596950 is 59695146.

It is a happy number.

641596950 is a `hidden beast` number, since 6 + 4 + 1 + 596 + 9 + 50 = 666.

It is a super-3 number, since 3×641596950³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 641596896 and 641596905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 75160 + ... + 83259.

It is an arithmetic number, because the mean of its divisors is an integer number (29711671).

Almost surely, 2^641596950 is an apocalyptic number.

641596950 is an abundant number, since it is smaller than the sum of its proper divisors (1141103310).

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

641596950 is a wasteful number, since it uses less digits than its factorization.

641596950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158443 (or 158429 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 641596950 is about 25329.7641126008. The cubic root of 641596950 is about 862.4900565961.

The spelling of 641596950 in words is "six hundred forty-one million, five hundred ninety-six thousand, nine hundred fifty".