1016155551 has 8 divisors (see below), whose sum is σ = 1366864560. Its totient is φ = 671441792.

The previous prime is 1016155523. The next prime is 1016155559. The reversal of 1016155551 is 1555516101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1016155551 - 2⁵ = 1016155519 is a prime.

It is a super-2 number, since 2×1016155551² = 2065144207656227202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1016155559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1498416 + ... + 1499093.

It is an arithmetic number, because the mean of its divisors is an integer number (170858070).

Almost surely, 2^1016155551 is an apocalyptic number.

1016155551 is a deficient number, since it is larger than the sum of its proper divisors (350709009).

1016155551 is a wasteful number, since it uses less digits than its factorization.

1016155551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997625.

The product of its (nonzero) digits is 3750, while the sum is 30.

The square root of 1016155551 is about 31877.1948420811. The cubic root of 1016155551 is about 1005.3564409787.

The spelling of 1016155551 in words is "one billion, sixteen million, one hundred fifty-five thousand, five hundred fifty-one".