1646145098 has 32 divisors (see below), whose sum is σ = 2783120256. Its totient is φ = 724540608.

The previous prime is 1646145089. The next prime is 1646145101. The reversal of 1646145098 is 8905416461.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203540 + ... + 211472.

It is an arithmetic number, because the mean of its divisors is an integer number (86972508).

Almost surely, 2^1646145098 is an apocalyptic number.

1646145098 is a deficient number, since it is larger than the sum of its proper divisors (1136975158).

1646145098 is a wasteful number, since it uses less digits than its factorization.

1646145098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8318.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 1646145098 is about 40572.7137125433. The cubic root of 1646145098 is about 1180.7447893109.

The spelling of 1646145098 in words is "one billion, six hundred forty-six million, one hundred forty-five thousand, ninety-eight".