1045664545020 has 48 divisors (see below), whose sum is σ = 2953771017120. Its totient is φ = 276376231936.

The previous prime is 1045664544961. The next prime is 1045664545021. The reversal of 1045664545020 is 205454665401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045664545021) 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, 77107125 + ... + 77120684.

It is an arithmetic number, because the mean of its divisors is an integer number (61536896190).

Almost surely, 2^{1045664545020} is an apocalyptic number.

1045664545020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045664545020 is an abundant number, since it is smaller than the sum of its proper divisors (1908106472100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1045664545020 is a wasteful number, since it uses less digits than its factorization.

1045664545020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154227934 (or 154227932 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 1045664545020 in words is "one trillion, forty-five billion, six hundred sixty-four million, five hundred forty-five thousand, twenty".