61007958522 has 144 divisors (see below), whose sum is σ = 160368429312. Its totient is φ = 16693931520.

The previous prime is 61007958509. The next prime is 61007958527. The reversal of 61007958522 is 22585970016.

61007958522 is a `hidden beast` number, since 6 + 1 + 0 + 0 + 79 + 58 + 522 = 666.

It is not an unprimeable number, because it can be changed into a prime (61007958527) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2640673 + ... + 2663675.

It is an arithmetic number, because the mean of its divisors is an integer number (1113669648).

Almost surely, 2^61007958522 is an apocalyptic number.

61007958522 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 61007958522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80184214656).

61007958522 is an abundant number, since it is smaller than the sum of its proper divisors (99360470790).

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

61007958522 is a wasteful number, since it uses less digits than its factorization.

61007958522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23153 (or 23143 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 61007958522 in words is "sixty-one billion, seven million, nine hundred fifty-eight thousand, five hundred twenty-two".