2151350155340 has 24 divisors (see below), whose sum is σ = 4532269318080. Its totient is φ = 857790730368.

The previous prime is 2151350155321. The next prime is 2151350155387. The reversal of 2151350155340 is 435510531512.

It is a self number, because there is not a number n which added to its sum of digits gives 2151350155340.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171826820 + ... + 171839339.

It is an arithmetic number, because the mean of its divisors is an integer number (188844554920).

Almost surely, 2^{2151350155340} is an apocalyptic number.

2151350155340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151350155340 is an abundant number, since it is smaller than the sum of its proper divisors (2380919162740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2151350155340 is a wasteful number, since it uses less digits than its factorization.

2151350155340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343666481 (or 343666479 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 2151350155340 its reverse (435510531512), we get a palindrome (2586860686852).

The spelling of 2151350155340 in words is "two trillion, one hundred fifty-one billion, three hundred fifty million, one hundred fifty-five thousand, three hundred forty".