61667283480 has 64 divisors (see below), whose sum is σ = 201820204800. Its totient is φ = 14949644160.

The previous prime is 61667283473. The next prime is 61667283499. The reversal of 61667283480 is 8438276616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23357500 + ... + 23360139.

It is an arithmetic number, because the mean of its divisors is an integer number (3153440700).

Almost surely, 2^61667283480 is an apocalyptic number.

61667283480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61667283480 is an abundant number, since it is smaller than the sum of its proper divisors (140152921320).

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

61667283480 is a wasteful number, since it uses less digits than its factorization.

61667283480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46717664 (or 46717660 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 61667283480 in words is "sixty-one billion, six hundred sixty-seven million, two hundred eighty-three thousand, four hundred eighty".