6545150381 has 32 divisors (see below), whose sum is σ = 8598374400. Its totient is φ = 4826796480.

The previous prime is 6545150371. The next prime is 6545150429. The reversal of 6545150381 is 1830515456.

It is not a de Polignac number, because 6545150381 - 2⁶ = 6545150317 is a prime.

It is a super-2 number, since 2×6545150381² = 85677987019808890322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6545150341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2124200 + ... + 2127278.

It is an arithmetic number, because the mean of its divisors is an integer number (268699200).

Almost surely, 2^6545150381 is an apocalyptic number.

It is an amenable number.

6545150381 is a deficient number, since it is larger than the sum of its proper divisors (2053224019).

6545150381 is a wasteful number, since it uses less digits than its factorization.

6545150381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 6545150381 is about 80902.1036871106. The cubic root of 6545150381 is about 1870.5667475831.

The spelling of 6545150381 in words is "six billion, five hundred forty-five million, one hundred fifty thousand, three hundred eighty-one".