22361257542 has 16 divisors (see below), whose sum is σ = 48162708720. Its totient is φ = 6880386912.

The previous prime is 22361257537. The next prime is 22361257543. The reversal of 22361257542 is 24575216322.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 22361257542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22361257543) 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, 143341317 + ... + 143341472.

It is an arithmetic number, because the mean of its divisors is an integer number (3010169295).

Almost surely, 2^22361257542 is an apocalyptic number.

22361257542 is an abundant number, since it is smaller than the sum of its proper divisors (25801451178).

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

22361257542 is a wasteful number, since it uses less digits than its factorization.

22361257542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286682807.

The product of its digits is 201600, while the sum is 39.

The spelling of 22361257542 in words is "twenty-two billion, three hundred sixty-one million, two hundred fifty-seven thousand, five hundred forty-two".