61031501016 has 32 divisors (see below), whose sum is σ = 160609214400. Its totient is φ = 19273105440.

The previous prime is 61031501009. The next prime is 61031501059. The reversal of 61031501016 is 61010513016.

61031501016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 66920050 + ... + 66920961.

It is an arithmetic number, because the mean of its divisors is an integer number (5019037950).

Almost surely, 2^61031501016 is an apocalyptic number.

It is an amenable number.

61031501016 is an abundant number, since it is smaller than the sum of its proper divisors (99577713384).

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

61031501016 is a wasteful number, since it uses less digits than its factorization.

61031501016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133841039 (or 133841035 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The spelling of 61031501016 in words is "sixty-one billion, thirty-one million, five hundred one thousand, sixteen".