630145100016555 has 16 divisors (see below), whose sum is σ = 1024760556093984. Its totient is φ = 330567921319680.

The previous prime is 630145100016547. The next prime is 630145100016557. The reversal of 630145100016555 is 555610001541036.

It is not a de Polignac number, because 630145100016555 - 2³ = 630145100016547 is a prime.

It is a super-2 number, since 2×630145100016555² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (630145100016557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344341583794 + ... + 344341585623.

It is an arithmetic number, because the mean of its divisors is an integer number (64047534755874).

Almost surely, 2^{630145100016555} is an apocalyptic number.

630145100016555 is a deficient number, since it is larger than the sum of its proper divisors (394615456077429).

630145100016555 is a wasteful number, since it uses less digits than its factorization.

630145100016555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688683169486.

The product of its (nonzero) digits is 270000, while the sum is 42.

The spelling of 630145100016555 in words is "six hundred thirty trillion, one hundred forty-five billion, one hundred million, sixteen thousand, five hundred fifty-five".