30023555415551 has 4 divisors (see below), whose sum is σ = 30189431412504. Its totient is φ = 29857679418600.

The previous prime is 30023555415521. The next prime is 30023555415559. The reversal of 30023555415551 is 15551455532003.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30023555415551 - 2⁶ = 30023555415487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30023555415559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82937998205 + ... + 82937998566.

It is an arithmetic number, because the mean of its divisors is an integer number (7547357853126).

Almost surely, 2^{30023555415551} is an apocalyptic number.

30023555415551 is a deficient number, since it is larger than the sum of its proper divisors (165875996953).

30023555415551 is a wasteful number, since it uses less digits than its factorization.

30023555415551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165875996952.

The product of its (nonzero) digits is 1125000, while the sum is 44.

The spelling of 30023555415551 in words is "thirty trillion, twenty-three billion, five hundred fifty-five million, four hundred fifteen thousand, five hundred fifty-one".