201241172680 has 32 divisors (see below), whose sum is σ = 479427501240. Its totient is φ = 75761382400.

The previous prime is 201241172677. The next prime is 201241172687. The reversal of 201241172680 is 86271142102.

It can be written as a sum of positive squares in 4 ways, for example, as 195291518724 + 5949653956 = 441918^2 + 77134^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (201241172687) 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, 147970771 + ... + 147972130.

Almost surely, 2^201241172680 is an apocalyptic number.

201241172680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201241172680 is an abundant number, since it is smaller than the sum of its proper divisors (278186328560).

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

201241172680 is a wasteful number, since it uses less digits than its factorization.

201241172680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295942929 (or 295942925 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The spelling of 201241172680 in words is "two hundred one billion, two hundred forty-one million, one hundred seventy-two thousand, six hundred eighty".