4061261660 has 24 divisors (see below), whose sum is σ = 8668466016. Its totient is φ = 1597872960.

The previous prime is 4061261641. The next prime is 4061261693. The reversal of 4061261660 is 661621604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1663232 + ... + 1665671.

It is an arithmetic number, because the mean of its divisors is an integer number (361186084).

Almost surely, 2^4061261660 is an apocalyptic number.

It is an amenable number.

4061261660 is an abundant number, since it is smaller than the sum of its proper divisors (4607204356).

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

4061261660 is a wasteful number, since it uses less digits than its factorization.

4061261660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328973 (or 3328971 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 4061261660 is about 63728.0288413191. The cubic root of 4061261660 is about 1595.4639308466.

The spelling of 4061261660 in words is "four billion, sixty-one million, two hundred sixty-one thousand, six hundred sixty".