61020615711 has 24 divisors (see below), whose sum is σ = 94285407744. Its totient is φ = 34806762880.

The previous prime is 61020615709. The next prime is 61020615713. The reversal of 61020615711 is 11751602016.

It is an interprime number because it is at equal distance from previous prime (61020615709) and next prime (61020615713).

It is not a de Polignac number, because 61020615711 - 2¹ = 61020615709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61020615713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3189615 + ... + 3208688.

It is an arithmetic number, because the mean of its divisors is an integer number (3928558656).

Almost surely, 2^61020615711 is an apocalyptic number.

61020615711 is a deficient number, since it is larger than the sum of its proper divisors (33264792033).

61020615711 is a wasteful number, since it uses less digits than its factorization.

61020615711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6398351 (or 6398334 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The spelling of 61020615711 in words is "sixty-one billion, twenty million, six hundred fifteen thousand, seven hundred eleven".