1005222155516 has 6 divisors (see below), whose sum is σ = 1759138772160. Its totient is φ = 502611077756.

The previous prime is 1005222155423. The next prime is 1005222155563. The reversal of 1005222155516 is 6155512225001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125652769436 + ... + 125652769443.

It is an arithmetic number, because the mean of its divisors is an integer number (293189795360).

Almost surely, 2^{1005222155516} is an apocalyptic number.

It is an amenable number.

1005222155516 is a deficient number, since it is larger than the sum of its proper divisors (753916616644).

1005222155516 is a wasteful number, since it uses less digits than its factorization.

1005222155516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251305538883 (or 251305538881 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 1005222155516 in words is "one trillion, five billion, two hundred twenty-two million, one hundred fifty-five thousand, five hundred sixteen".