61020740000 has 240 divisors, whose sum is σ = 166488781536. Its totient is φ = 21820800000.

The previous prime is 61020739991. The next prime is 61020740017. The reversal of 61020740000 is 4702016.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13417727 + ... + 13422273.

Almost surely, 2^61020740000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61020740000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83244390768).

61020740000 is an abundant number, since it is smaller than the sum of its proper divisors (105468041536).

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

61020740000 is a wasteful number, since it uses less digits than its factorization.

61020740000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4649 (or 4626 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The spelling of 61020740000 in words is "sixty-one billion, twenty million, seven hundred forty thousand".