23120553451555 has 32 divisors (see below), whose sum is σ = 32575408836480. Its totient is φ = 15420752732160.

The previous prime is 23120553451549. The next prime is 23120553451631. The reversal of 23120553451555 is 55515435502132.

It is not a de Polignac number, because 23120553451555 - 2⁴¹ = 20921530196003 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1313091 + ... + 6925699.

It is an arithmetic number, because the mean of its divisors is an integer number (1017981526140).

Almost surely, 2^{23120553451555} is an apocalyptic number.

23120553451555 is a deficient number, since it is larger than the sum of its proper divisors (9454855384925).

23120553451555 is a wasteful number, since it uses less digits than its factorization.

23120553451555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5615839.

The product of its (nonzero) digits is 2250000, while the sum is 46.

Adding to 23120553451555 its reverse (55515435502132), we get a palindrome (78635988953687).

The spelling of 23120553451555 in words is "twenty-three trillion, one hundred twenty billion, five hundred fifty-three million, four hundred fifty-one thousand, five hundred fifty-five".