45515401551 has 16 divisors (see below), whose sum is σ = 67456473600. Its totient is φ = 30331788984.

The previous prime is 45515401549. The next prime is 45515401583. The reversal of 45515401551 is 15510451554.

45515401551 is a `hidden beast` number, since 4 + 5 + 51 + 54 + 0 + 1 + 551 = 666.

It is not a de Polignac number, because 45515401551 - 2¹ = 45515401549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45515409551) 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, 257191 + ... + 396456.

It is an arithmetic number, because the mean of its divisors is an integer number (4216029600).

Almost surely, 2^45515401551 is an apocalyptic number.

45515401551 is a deficient number, since it is larger than the sum of its proper divisors (21941072049).

45515401551 is a wasteful number, since it uses less digits than its factorization.

45515401551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656235 (or 656229 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 36.

The spelling of 45515401551 in words is "forty-five billion, five hundred fifteen million, four hundred one thousand, five hundred fifty-one".