40420620145 has 16 divisors (see below), whose sum is σ = 48780725760. Its totient is φ = 32152679424.

The previous prime is 40420620113. The next prime is 40420620167. The reversal of 40420620145 is 54102602404.

40420620145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40420620145 - 2⁵ = 40420620113 is a prime.

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, 2120266 + ... + 2139244.

It is an arithmetic number, because the mean of its divisors is an integer number (3048795360).

Almost surely, 2^40420620145 is an apocalyptic number.

It is an amenable number.

40420620145 is a deficient number, since it is larger than the sum of its proper divisors (8360105615).

40420620145 is a wasteful number, since it uses less digits than its factorization.

40420620145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21384.

The product of its (nonzero) digits is 7680, while the sum is 28.

The spelling of 40420620145 in words is "forty billion, four hundred twenty million, six hundred twenty thousand, one hundred forty-five".