105132215778 has 16 divisors (see below), whose sum is σ = 210299161440. Its totient is φ = 35038283616.

The previous prime is 105132215777. The next prime is 105132215791. The reversal of 105132215778 is 877512231501.

It is a super-2 number, since 2×105132215778² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105132215777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1407643 + ... + 1480446.

It is an arithmetic number, because the mean of its divisors is an integer number (13143697590).

Almost surely, 2^105132215778 is an apocalyptic number.

105132215778 is an abundant number, since it is smaller than the sum of its proper divisors (105166945662).

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

105132215778 is a wasteful number, since it uses less digits than its factorization.

105132215778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894161.

The product of its (nonzero) digits is 117600, while the sum is 42.

The spelling of 105132215778 in words is "one hundred five billion, one hundred thirty-two million, two hundred fifteen thousand, seven hundred seventy-eight".