61526570340 has 192 divisors, whose sum is σ = 187378458624. Its totient is φ = 15026829312.

The previous prime is 61526570327. The next prime is 61526570341. The reversal of 61526570340 is 4307562516.

61526570340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61526570341) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5666797 + ... + 5677643.

It is an arithmetic number, because the mean of its divisors is an integer number (975929472).

Almost surely, 2^61526570340 is an apocalyptic number.

61526570340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61526570340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93689229312).

61526570340 is an abundant number, since it is smaller than the sum of its proper divisors (125851888284).

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

61526570340 is a wasteful number, since it uses less digits than its factorization.

61526570340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11026 (or 11024 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 61526570340 in words is "sixty-one billion, five hundred twenty-six million, five hundred seventy thousand, three hundred forty".