10501078566 has 64 divisors (see below), whose sum is σ = 23197777920. Its totient is φ = 3142611360.

The previous prime is 10501078507. The next prime is 10501078571. The reversal of 10501078566 is 66587010501.

It is a super-2 number, since 2×10501078566² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1899955 + ... + 1905473.

It is an arithmetic number, because the mean of its divisors is an integer number (362465280).

Almost surely, 2^10501078566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10501078566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11598888960).

10501078566 is an abundant number, since it is smaller than the sum of its proper divisors (12696699354).

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

10501078566 is a wasteful number, since it uses less digits than its factorization.

10501078566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5889.

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 10501078566 in words is "ten billion, five hundred one million, seventy-eight thousand, five hundred sixty-six".