20020153545 has 24 divisors (see below), whose sum is σ = 39658971456. Its totient is φ = 9152070048.

The previous prime is 20020153519. The next prime is 20020153597. The reversal of 20020153545 is 54535102002.

It is a happy number.

It is not a de Polignac number, because 20020153545 - 2⁶ = 20020153481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31777707 + ... + 31778336.

It is an arithmetic number, because the mean of its divisors is an integer number (1652457144).

Almost surely, 2^20020153545 is an apocalyptic number.

It is an amenable number.

20020153545 is a deficient number, since it is larger than the sum of its proper divisors (19638817911).

20020153545 is a wasteful number, since it uses less digits than its factorization.

20020153545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63556061 (or 63556058 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 20020153545 its reverse (54535102002), we get a palindrome (74555255547).

The spelling of 20020153545 in words is "twenty billion, twenty million, one hundred fifty-three thousand, five hundred forty-five".