12157105458 has 16 divisors (see below), whose sum is σ = 24315301440. Its totient is φ = 4052186736.

The previous prime is 12157105451. The next prime is 12157105463. The reversal of 12157105458 is 85450175121.

It is not an unprimeable number, because it can be changed into a prime (12157105451) 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, 209616 + ... + 261252.

It is an arithmetic number, because the mean of its divisors is an integer number (1519706340).

Almost surely, 2^12157105458 is an apocalyptic number.

12157105458 is an abundant number, since it is smaller than the sum of its proper divisors (12158195982).

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

12157105458 is a wasteful number, since it uses less digits than its factorization.

12157105458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90881.

The product of its (nonzero) digits is 56000, while the sum is 39.

The spelling of 12157105458 in words is "twelve billion, one hundred fifty-seven million, one hundred five thousand, four hundred fifty-eight".