61457145052000 has 48 divisors (see below), whose sum is σ = 151000205402592. Its totient is φ = 24582858019200.

The previous prime is 61457145051961. The next prime is 61457145052021. The reversal of 61457145052000 is 25054175416.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 7682139132 + ... + 7682147131.

It is an arithmetic number, because the mean of its divisors is an integer number (3145837612554).

Almost surely, 2^{61457145052000} is an apocalyptic number.

It is an amenable number.

61457145052000 is an abundant number, since it is smaller than the sum of its proper divisors (89543060350592).

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

61457145052000 is a wasteful number, since it uses less digits than its factorization.

61457145052000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15364286288 (or 15364286270 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 61457145052000 in words is "sixty-one trillion, four hundred fifty-seven billion, one hundred forty-five million, fifty-two thousand".