61264158354 has 168 divisors, whose sum is σ = 160766484480. Its totient is φ = 17450545392.

The previous prime is 61264158343. The next prime is 61264158379. The reversal of 61264158354 is 45385146216.

61264158354 is a `hidden beast` number, since 6 + 1 + 2 + 64 + 1 + 583 + 5 + 4 = 666.

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 83 ways as a sum of consecutive naturals, for example, 27361167 + ... + 27363405.

It is an arithmetic number, because the mean of its divisors is an integer number (956943360).

Almost surely, 2^61264158354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61264158354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80383242240).

61264158354 is an abundant number, since it is smaller than the sum of its proper divisors (99502326126).

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

61264158354 is a wasteful number, since it uses less digits than its factorization.

61264158354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656 (or 2634 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The spelling of 61264158354 in words is "sixty-one billion, two hundred sixty-four million, one hundred fifty-eight thousand, three hundred fifty-four".