1645518058 has 32 divisors (see below), whose sum is σ = 2591073360. Its totient is φ = 782745600.

The previous prime is 1645518053. The next prime is 1645518071. The reversal of 1645518058 is 8508155461.

It can be written as a sum of positive squares in 8 ways, for example, as 1591451449 + 54066609 = 39893^2 + 7353^2 .

It is a super-3 number, since 3×1645518058³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1645518053) 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, 1504960 + ... + 1506052.

Almost surely, 2^1645518058 is an apocalyptic number.

1645518058 is a deficient number, since it is larger than the sum of its proper divisors (945555302).

1645518058 is a wasteful number, since it uses less digits than its factorization.

1645518058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482.

The product of its (nonzero) digits is 192000, while the sum is 43.

The square root of 1645518058 is about 40564.9856156760. The cubic root of 1645518058 is about 1180.5948494626.

The spelling of 1645518058 in words is "one billion, six hundred forty-five million, five hundred eighteen thousand, fifty-eight".