101051661242 has 16 divisors (see below), whose sum is σ = 173703448320. Its totient is φ = 43189847568.

The previous prime is 101051661229. The next prime is 101051661323. The reversal of 101051661242 is 242166150101.

It is a super-2 number, since 2×101051661242² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9828617 + ... + 9838892.

It is an arithmetic number, because the mean of its divisors is an integer number (10856465520).

Almost surely, 2^101051661242 is an apocalyptic number.

101051661242 is a deficient number, since it is larger than the sum of its proper divisors (72651787078).

101051661242 is a wasteful number, since it uses less digits than its factorization.

101051661242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19667885.

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 101051661242 in words is "one hundred one billion, fifty-one million, six hundred sixty-one thousand, two hundred forty-two".