21146055418030 has 16 divisors (see below), whose sum is σ = 38544708611520. Its totient is φ = 8351353531872.

The previous prime is 21146055418013. The next prime is 21146055418057. The reversal of 21146055418030 is 3081455064112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13383578589 + ... + 13383580168.

It is an arithmetic number, because the mean of its divisors is an integer number (2409044288220).

Almost surely, 2^{21146055418030} is an apocalyptic number.

21146055418030 is a deficient number, since it is larger than the sum of its proper divisors (17398653193490).

21146055418030 is a wasteful number, since it uses less digits than its factorization.

21146055418030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26767158843.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 21146055418030 in words is "twenty-one trillion, one hundred forty-six billion, fifty-five million, four hundred eighteen thousand, thirty".