61151506666050 has 48 divisors (see below), whose sum is σ = 151856074642752. Its totient is φ = 16285526712000.

The previous prime is 61151506665983. The next prime is 61151506666069. The reversal of 61151506666050 is 5066660515116.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269157726 + ... + 269384825.

It is an arithmetic number, because the mean of its divisors is an integer number (3163668221724).

Almost surely, 2^{61151506666050} is an apocalyptic number.

61151506666050 is an abundant number, since it is smaller than the sum of its proper divisors (90704567976702).

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

61151506666050 is a wasteful number, since it uses less digits than its factorization.

61151506666050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538543323 (or 538543318 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 61151506666050 in words is "sixty-one trillion, one hundred fifty-one billion, five hundred six million, six hundred sixty-six thousand, fifty".