201260769660 has 432 divisors, whose sum is σ = 672237270432. Its totient is φ = 50512896000.

The previous prime is 201260769623. The next prime is 201260769667. The reversal of 201260769660 is 66967062102.

201260769660 is a `hidden beast` number, since 20 + 12 + 607 + 6 + 9 + 6 + 6 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201260769667) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 167577060 + ... + 167578260.

Almost surely, 2^201260769660 is an apocalyptic number.

201260769660 is a gapful number since it is divisible by the number (20) 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 201260769660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336118635216).

201260769660 is an abundant number, since it is smaller than the sum of its proper divisors (470976500772).

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

201260769660 is a wasteful number, since it uses less digits than its factorization.

201260769660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324 (or 1281 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 201260769660 in words is "two hundred one billion, two hundred sixty million, seven hundred sixty-nine thousand, six hundred sixty".