195227504640 has 832 divisors, whose sum is σ = 819299205120. Its totient is φ = 43157422080.

The previous prime is 195227504629. The next prime is 195227504743. The reversal of 195227504640 is 46405722591.

195227504640 is a `hidden beast` number, since 19 + 52 + 27 + 504 + 64 + 0 = 666.

It is a super-2 number, since 2×195227504640² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119991507 + ... + 119993133.

Almost surely, 2^195227504640 is an apocalyptic number.

195227504640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195227504640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409649602560).

195227504640 is an abundant number, since it is smaller than the sum of its proper divisors (624071700480).

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

195227504640 is a wasteful number, since it uses less digits than its factorization.

195227504640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 195227504640 in words is "one hundred ninety-five billion, two hundred twenty-seven million, five hundred four thousand, six hundred forty".