61667260 has 24 divisors (see below), whose sum is σ = 129928176. Its totient is φ = 24585600.

The previous prime is 61667251. The next prime is 61667273. The reversal of 61667260 is 6276616.

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, 1335 + ... + 11185.

It is an arithmetic number, because the mean of its divisors is an integer number (5413674).

Almost surely, 2^61667260 is an apocalyptic number.

It is an amenable number.

61667260 is an abundant number, since it is smaller than the sum of its proper divisors (68260916).

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

61667260 is a wasteful number, since it uses less digits than its factorization.

61667260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10173 (or 10171 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 61667260 is about 7852.8504378983. The cubic root of 61667260 is about 395.0798535347.

It can be divided in two parts, 616 and 67260, that added together give a palindrome (67876).

The spelling of 61667260 in words is "sixty-one million, six hundred sixty-seven thousand, two hundred sixty".