1016958645 has 28 divisors (see below), whose sum is σ = 1829695116. Its totient is φ = 542376000.

The previous prime is 1016958637. The next prime is 1016958661. The reversal of 1016958645 is 5468596101.

1016958645 is a `hidden beast` number, since 1 + 0 + 1 + 69 + 586 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 207100881 + 809857764 = 14391^2 + 28458^2 .

It is not a de Polignac number, because 1016958645 - 2³ = 1016958637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1016958645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 135856 + ... + 143145.

Almost surely, 2^1016958645 is an apocalyptic number.

1016958645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1016958645 is a deficient number, since it is larger than the sum of its proper divisors (812736471).

1016958645 is an frugal number, since it uses more digits than its factorization.

1016958645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279024 (or 279009 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 1016958645 is about 31889.7890397538. The cubic root of 1016958645 is about 1005.6212242973.

The spelling of 1016958645 in words is "one billion, sixteen million, nine hundred fifty-eight thousand, six hundred forty-five".