61206614544 has 40 divisors (see below), whose sum is σ = 158482307872. Its totient is φ = 20355079680.

The previous prime is 61206614543. The next prime is 61206614603. The reversal of 61206614544 is 44541660216.

It is not an unprimeable number, because it can be changed into a prime (61206614543) 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, 1451662 + ... + 1493229.

Almost surely, 2^61206614544 is an apocalyptic number.

It is an amenable number.

61206614544 is an abundant number, since it is smaller than the sum of its proper divisors (97275693328).

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

61206614544 is a wasteful number, since it uses less digits than its factorization.

61206614544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945335 (or 2945329 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 61206614544 in words is "sixty-one billion, two hundred six million, six hundred fourteen thousand, five hundred forty-four".