23491603447156 has 24 divisors (see below), whose sum is σ = 44272847790080. Its totient is φ = 10842226957152.

The previous prime is 23491603447111. The next prime is 23491603447157. The reversal of 23491603447156 is 65174430619432.

It is a junction number, because it is equal to n+sod(n) for n = 23491603447097 and 23491603447106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23491603447157) 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, 11330965 + ... + 13242883.

Almost surely, 2^{23491603447156} is an apocalyptic number.

23491603447156 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23491603447156 is a deficient number, since it is larger than the sum of its proper divisors (20781244342924).

23491603447156 is a wasteful number, since it uses less digits than its factorization.

23491603447156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148223 (or 2148221 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 23491603447156 in words is "twenty-three trillion, four hundred ninety-one billion, six hundred three million, four hundred forty-seven thousand, one hundred fifty-six".