153055015440021 has 12 divisors (see below), whose sum is σ = 221107426817472. Its totient is φ = 102023772311976.

The previous prime is 153055015439957. The next prime is 153055015440097. The reversal of 153055015440021 is 120044510550351.

153055015440021 is a `hidden beast` number, since 1 + 5 + 30 + 5 + 50 + 154 + 400 + 21 = 666.

It is not a de Polignac number, because 153055015440021 - 2⁶ = 153055015439957 is a prime.

It is a super-3 number, since 3×153055015440021³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153055015440221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1075312221 + ... + 1075454546.

It is an arithmetic number, because the mean of its divisors is an integer number (18425618901456).

Almost surely, 2^{153055015440021} is an apocalyptic number.

It is an amenable number.

153055015440021 is a deficient number, since it is larger than the sum of its proper divisors (68052411377451).

153055015440021 is a wasteful number, since it uses less digits than its factorization.

153055015440021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150774680 (or 2150774677 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 153055015440021 its reverse (120044510550351), we get a palindrome (273099525990372).

The spelling of 153055015440021 in words is "one hundred fifty-three trillion, fifty-five billion, fifteen million, four hundred forty thousand, twenty-one".