340207720755 has 128 divisors (see below), whose sum is σ = 651433082880. Its totient is φ = 148340574720.

The previous prime is 340207720751. The next prime is 340207720757. The reversal of 340207720755 is 557027702043.

It is a happy number.

It is not a de Polignac number, because 340207720755 - 2² = 340207720751 is a prime.

It is a super-2 number, since 2×340207720755² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340207720751) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 256372902 + ... + 256374228.

It is an arithmetic number, because the mean of its divisors is an integer number (5089320960).

Almost surely, 2^340207720755 is an apocalyptic number.

340207720755 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

340207720755 is a deficient number, since it is larger than the sum of its proper divisors (311225362125).

340207720755 is a wasteful number, since it uses less digits than its factorization.

340207720755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449.

The product of its (nonzero) digits is 411600, while the sum is 42.

The spelling of 340207720755 in words is "three hundred forty billion, two hundred seven million, seven hundred twenty thousand, seven hundred fifty-five".