23561087501906 has 32 divisors (see below), whose sum is σ = 36328632943680. Its totient is φ = 11455969084416.

The previous prime is 23561087501893. The next prime is 23561087501977. The reversal of 23561087501906 is 60910578016532.

It is a happy number.

It is a super-2 number, since 2×23561087501906² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23347910 + ... + 24336126.

It is an arithmetic number, because the mean of its divisors is an integer number (1135269779490).

Almost surely, 2^{23561087501906} is an apocalyptic number.

23561087501906 is a deficient number, since it is larger than the sum of its proper divisors (12767545441774).

23561087501906 is a wasteful number, since it uses less digits than its factorization.

23561087501906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990458.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 23561087501906 in words is "twenty-three trillion, five hundred sixty-one billion, eighty-seven million, five hundred one thousand, nine hundred six".