993346630551 has 48 divisors (see below), whose sum is σ = 1641620597760. Its totient is φ = 572929748160.

The previous prime is 993346630537. The next prime is 993346630603. The reversal of 993346630551 is 155036643399.

993346630551 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 993346630551 - 2⁶ = 993346630487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993346630501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 658671 + ... + 1555808.

It is an arithmetic number, because the mean of its divisors is an integer number (34200429120).

Almost surely, 2^993346630551 is an apocalyptic number.

993346630551 is a deficient number, since it is larger than the sum of its proper divisors (648273967209).

993346630551 is a wasteful number, since it uses less digits than its factorization.

993346630551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214716 (or 2214713 counting only the distinct ones).

The product of its (nonzero) digits is 7873200, while the sum is 54.

The spelling of 993346630551 in words is "nine hundred ninety-three billion, three hundred forty-six million, six hundred thirty thousand, five hundred fifty-one".